1 / 18

Drip irrigation in Finland

Drip irrigation in Finland. Merja Myllys 1 and Osmo Purhonen 2 * 1 MTT Agrifood Research Finland, Plant Production Research, FI-31600 Jokioinen, Finland 2 Myllykyläntie 28, FI-20960 Turku, Finland * corresponding and presenting author, purhonenosmo@gmail.com . Contents.

arvid
Download Presentation

Drip irrigation in Finland

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Dripirrigation in Finland Merja Myllys1 and Osmo Purhonen2* 1 MTT Agrifood Research Finland, Plant Production Research, FI-31600 Jokioinen, Finland 2 Myllykyläntie 28, FI-20960 Turku, Finland * corresponding and presenting author, purhonenosmo@gmail.com

  2. Contents • Need for irrigation • Irrigationmethods • Dripirrigation; latestresults • potatocropproduction • horticulturalcropproduction • Futureprospects

  3. Precipitation and evaporation in Finland Picture: FinnishFieldDrainage Centre

  4. Need for irrigation • Borealclimaticzone • WaterdeficiencyfromMay to July ≈125 mm • Need for irrigationdepends on storagecapacity of soil • Drainage is moreimportantthanirrigation • Irrigation is alsoused to preventfrostdamages (20-40 mm/night)

  5. Irrigationmethods • Irrigationwasintroducedlate: in 1960’ • Sprinkler and boomirrigationareprevailingmethods • 9% of farmshaveirrigationequipment • 80 000 hectares out of 2.4 milj. hectarescanbeirrigated • Irrigationwaterfromnaturalwatercourses • 2% of totalrun-off is utilized for municipal and industrialpurposes, minorpart for irrigation

  6. Irrigationmethods

  7. Dripirrigation • Novelmethod on field

  8. 1) Dripirrigation in potatocropproduction • On-farmfieldexperiment; one main farm (alltreatments) + fourothers (sometreatments in each) • Treatments: dripirrigation, sprinkler, boom, subsurfaceirrigation, no irrigation • Measurments/observations: water and nutrient status of the soil, yield and yieldquality of the potatocrop

  9. Dripirrigation in potatocropproduction • Allmethodsincreasedyield • Dripirrigationincreased proportion of marketableyield(tubersize 35-55 mm)

  10. Dripirrigation in potatocropproduction • Possibility to addliquidfertilizes in the irrigationwaterincreased the importantcalciumcontent in the tubers

  11. Dripirrigation in potatocropproduction • Dripirrigationdiminishedleaching of nutrientsduringgrowingseason(the redbarindicateshowmuchnutrientsareleftafterharvest)

  12. 2) Dripirrigation in horticulturalcropproduction • Jointseries of fieldexperiments • Cropswerepicklingcucumber, strawberry, blackcurrant and raspberry • Productionpractises, workdemand, and economywerestudied • Guidelines for farmerswere made

  13. Dripirrigation in horticulturalcropproduction • Cropbenefitedfromdripirrigationwhichwasstartedwhentensiometresindicatedsuction of -150 to -300 hPa. • Especiallyberrycropsbenefitedfromaddedfertilizers in the irrigationwater

  14. Dripirrigation in horticulturalcropproduction • Installation of dripirrigationsystemrequires a lot of work • Productioncosts per farmincrease • Productioncosts per kg of yielddecreasedif the amount of yieldexceeded • 8 – 9 000 kg/ha for strawberry • 6 - 9 000 kg/ha for blackcurrant • 55 000 kg/ha for picklingcucumber

  15. Conclusions • As waterreservoirsareplenty in Finland, lack of irrigationwater is not the main reason to choosedripirrigationinstead of anothermethod. • Reasonsare • the possibility for fertilizationduring the growingseason • minimizedleaching of nutrients • efficientuse of water and nutrients • ease of useonceinstalled

  16. Conclusions • Disadvantages of dripirrigationare • Laboriousinstalling • The factthatdripirrigationcannotbeused for preventingfrostdamages

  17. Futureprospects • Dripirrigationwillbemorecommonlyused in highvalueperennialcropproduction • Due to highinstallationcostdripirrigationwillnotbewidelyused for annualcropproduction • Need for irrigationwillincreasedue to climatechange

  18. Thankyou!

More Related